| Term | Full Form | Category |
|---|---|---|
| LHHS | La Habra High School | Others |
| LHHS | Laguna Hills High School | Others |
| LHHS | Lake Hamilton High School | Others |
| LHHS | Lake Havasu High School | Others |
| LHHS | Lake Highlands High School | Others |
| LHHS | Lake Howell High School | Others |
| LHHS | Leo Hayes High School | Others |
| LHHS | Liberty Hill High School | Others |
| LHHS | Licking Heights High School | Others |
| LHHS | Lyman Hall High School | Others |